Roller-skate



w. w. KARRO.

ROLLER SKATE.

APPLICATION FILED OCT. 3. I919- 1,367,397. Patented Feb. 1, 1921.

it it hilt WILLIAM w. KARRO. or GREAT NECK, NEW YORK.

nopnnn-sxa'rn.

Specification of Letters Patent.

Application filed October 3, 1919. Serial No. 328,187.

To alt whom it may concern:

Be it known that I, WILLIAM W. KARRO,

a citizen of the United States, residing at Great Neck, in the county of Nassau and State of New York, have invented new and useful Improvements in Roller-Skates, of which the following is a specification.

The object of my present sole invention is the provision of a roller skate of advanta: genus construction in which the parts are so combined that the skate may be expeditiously and easily changed in length so as to be adapted for use by persons having feet of materially different sizes.

To the attainment of the foregoing, the invention consists in the improvement as hereinafter described and definitely claimed.

In the accompanying drawings, hereby made a part hereof:

Figure 1 is a side elevation-of a roller skate constituting the best practical embodiment of my invention that I have as yet devised.

Fig. 2 is a longitudinal vertical section of the same. 1

' Fig. 3 is a transverse section taken in the plane indicated by the line 3-3 of Fig. 2.

Fig. 4 comprises disconnected detail views of the straps complementary to the skate.

Fig. 5 is a detail view of a feature hereinafter explicitly referred to.

Similar numerals of reference designate corresponding parts in all of the views of the drawings. 7

Among other elements my novel skate comprises a body 1 having a heel-receiving portion 2 in .the side walls of which are slots 3. "Carried by the heel portion 2 is a hanger t in which is mounted a ground wheel 5 which is preferably of considerable diameter, and is provided with an appropriate ciishioning tire 6. Also carried by the portion 2 of the body 1 is a comparatively heavy combination mud-guard and brake 7. This element, by virtue of its arrangement, is adapted to serve under normal conditions as a mud-guard, and is also adapted when the wearer raises the forward portion of the skate. toengage the pavement or surface traversed by the skate, and thereby serve as an efi'ective emergency brake. omplementally to the heel portion 2 of the body 1 are straps 8 and9; the said straps being ccmipped with books 10 to engage in the slots 3, and one of the straps being provided with a keeper-loop 10", and the other with a lever-hook 11 adapted to be positloned in the keeper-loop and then swun back upon its strap so as to preclude casua disconnection of the strap.

The forward portion of the body 1 is longitudinally slotted at 11, and on said body portlon are pendent bearings 12 and 13; the bearing 12 serving'to support the forward end of a longitudinally threaded shaft 14, and the bearing 13 carrying a transversely disposed worm 15 which is adapted at one end for the application of a key lever or other means through the medium of which it ma be conveniently turned about its axis. T e shaft 14 is provided at its rear end with a worm gear 16 intermeshed with the worm 15.

Superimposed upon the forward portion of the body 1 is the longitudinally-adjustable toe-engaging piece 17 of the skate, and adjustable as a unit with the toe-engaging piece 17 is a mudguard-18 and a ground 1 wheel 19; the ground wheel 19 being simiward, while a reverse rotation of the worm- Patented Feb. 1, 1921.

15 will be attended by rearward movement' I of the toe-engaging piece 17 and the elements carried thereby; also the co-acting worm lo and worm gear 16 may be depended upon to adjustably fix the t0e-engaging piece 17 and the parts carried thereby with respect to the body 1, so thatthe proyislon of extraneous means for said purpose s unnecessary. It will be readily apparentfrom the foregomg that by virtue of my improvement, a roller skate may be expeditiously and easily fitted to feet of different sizes, and this without in any measure detracting from the utility of the skate or the'support that it affords to a skater.

Having described my invention, what I claim and desire to secure by Letters-Patcnt is:

1? In a roller skate, the combination with a wheel-supported body havingin its forward portion a longitudinal slot and on said portion spaced pendent bearings, athreaded and intermeshed with said. worm gear, a toeengaging piece adjustable longitudinally on the body and having a pendent lug disposed in the body slot and in which is a threaded bore receiving the threaded shank, hanger means carried by and adjustable with said toe-engaging piece, a mud-guard also carried by and adjustable with the to'e-enga ing pleee and one of the supporting whee s mounted in said hanger means.

meme"! 2. In a roller skate, the combination with a wheel supported body having in its forward portion a longitudinal slot and on said portion spaced pendent bearings, a threaded shaft journaled in the forward bearing, a toe-engaging piece adjustable longitudinally on the body and having a pendent lug disposed in the body slot and in which is a threaded bore receiving the threaded shaft, hanger means carried by and adjustable with the toe-engaging piece and one of the supporting wheels mounted in said hanger means.

In testimony whereof li afiix my signature.

m ma w. KARI-t0. 

